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Addition agent for carbon-based ceramic friction material mixing and preparation method thereof

A friction material and carbon-based ceramic technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of poor toughness, weak strength, and high temperature resistance of brake pads, and achieve high dynamic and static friction coefficients and enhanced effect. , the effect of improving safety

Inactive Publication Date: 2015-11-18
WANSHAN SPECIAL ZONE HONG AN FRICTION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the research on brake pads at home and abroad, although there are a large number of technical documents and technical standards, based on this, there are still many deficiencies in the technology in the field of automobile brake pads, such as the toughness of brake pads. Poor, weak strength, poor high temperature resistance, easy to slip, unreasonable formula, high energy consumption and other technical problems
The above all boils down to the fact that during the preparation process, mainly during the raw material mixing process of carbon-based ceramic friction materials, the raw materials have not been properly processed, which makes it difficult for the interaction of raw materials to ensure the quality of carbon-based ceramic friction materials, and further This leads to poor toughness, weak strength, low temperature resistance, and easy slipping. Therefore, this researcher combined the above technical problems to study the additives in the process of mixing ceramic friction material raw materials, and then made a contribution to the technical field of carbon-based ceramics preparation. Overcoming the above-mentioned technical defects provides a new idea

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A carbon-based ceramic friction material raw material mixing additive, its raw material components by weight are 20kg of nitrile modified resin, 3kg of molybdenum disulfide, 0.5kg of magnesium oxide, 3kg of graphite, 2kg of sodium carbonate, 1kg of gasoline, 3kg of waste oil, Pine oil 5kg, foam iron powder 1kg, plant ash 0.3kg.

[0024] The nitrile-modified resin is a nitrile-modified phenolic resin, and its modification method is: under the action of an alkali catalyst, react phenol and formaldehyde at 70° C. for 100 minutes, and after the reaction reaches 60 minutes, add an alkali catalyst 1 % of hydroxynitrile butadiene rubber, the mass ratio of the above-mentioned phenol to formaldehyde is 10:11; the above-mentioned alkali catalyst addition is 3% of phenol, and after the hydroxynitrile butadiene rubber is added, the stirring speed is 150r / min Treat for 1min, then adjust the stirring speed to 300r / min and stir until the reaction time of phenol and formaldehyde reache...

Embodiment 2

[0031] An additive for mixing raw materials of carbon-based ceramic friction materials. The raw material components are 30 kg of nitrile modified resin, 9 kg of molybdenum disulfide, 1.3 kg of magnesium oxide, 7 kg of graphite, 7 kg of sodium carbonate, 3 kg of gasoline, and 5 kg of waste oil in parts by weight. , pine oil 9kg, foam iron powder 3kg, plant ash 0.7kg.

[0032] The nitrile-modified resin is nitrile-modified epoxy resin.

[0033] Described nitrile-modified epoxy resin, its modification method is that hydroxynitrile-butadiene rubber and epoxy resin are in the environment of 300 ℃, control vacuum tightness is after 0.02MPa is 3:9 to mix with mass ratio, and It was treated at a constant temperature for 20s, then adjusted to 100s in 10s, kept at a constant temperature for 0.3min, then adjusted to 50°C in 5s, treated at a constant temperature for 0.2min, then adjusted to 30°C in 3s, kept at a constant temperature After 10 minutes, cool to normal temperature to obtain ...

Embodiment 3

[0039] An additive for mixing raw materials of carbon-based ceramic friction materials, its raw material components are 25 kg of nitrile modified resin, 6 kg of molybdenum disulfide, 1 kg of magnesium oxide, 5 kg of graphite, 5 kg of sodium carbonate, 2 kg of gasoline, 4 kg of waste oil, pine Oil 7kg, foam iron powder 2kg, plant ash 0.5kg.

[0040] The nitrile modified resin is nitrile modified cardanol epoxy resin.

[0041] Described nitrile-modified cardanol epoxy resin, its modification method is after the hydroxynitrile-butadiene rubber and cardanol epoxy resin are mixed according to mass ratio after being 1:7, then its temperature is adjusted to 100 ℃, and adopts The stirring speed is 1000r / min and the stirring treatment is 10min, and the nitrile-modified cardanol epoxy resin can be obtained.

[0042] A method for preparing an additive for mixing raw materials of carbon-based ceramic friction materials, comprising the following steps:

[0043] (1) After mixing nitrile m...

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Abstract

The invention relates to the technical field of modifiers for carbon-based ceramic material mixing, in particular to an addition agent for carbon-based ceramic friction material mixing and a preparation method thereof. By appropriate matching of butyronitrile modified resin, molybdenum disulfide, magnesium oxide, graphite, sodium carbonate, gasoline, drainage oil, pine oil, foam iron powder and plant oil, a microscopic biochemical reaction is performed between the raw materials, the effect of mutual modification is achieved, so that the modification of carbon-based ceramic materials can be promoted in the process of adding the addition agent to the carbon-based ceramic material to perform mixing, the quality of the carbon-based ceramic material is improved, the quality of carbon-based ceramics is further guaranteed, the dynamic and static friction coefficient of the prepared carbon-based ceramics is high, and the wear rate is low. The prepared carbon-based ceramics are high in heat resistance, and the safety of the carbon-based ceramics in the field of braking is improved.

Description

technical field [0001] The invention relates to the technical field of a modifier for mixing raw materials of carbon-based ceramic friction materials, in particular to an additive for mixing raw materials of carbon-based ceramic friction materials and a preparation method thereof. Background technique [0002] Friction material is a metal or non-metallic composite material mainly used to manufacture various brake and transmission parts with wear resistance and high temperature resistance. Such as automobile brake pads, also known as brake pads. According to different purposes, it can be divided into service brake and parking brake. At present, the research on automobile brake pads has been relatively abundant, and its literature volume is relatively large. The main research tends to be wear-resistant, excellent friction performance, high temperature resistance, and not easy to slip, that is, to improve the braking effect and reduce the safety factor. However, for the rese...

Claims

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Application Information

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IPC IPC(8): C08L61/14C08L63/00C08L91/00C08K3/00C08K3/30C08K3/22C08K3/04C08K3/26C08K3/08C09K3/14
Inventor 周贵宏单全庆
Owner WANSHAN SPECIAL ZONE HONG AN FRICTION MATERIAL
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